diff --git a/compose.yml b/compose.yml
index 728beae..177a6fd 100644
--- a/compose.yml
+++ b/compose.yml
@@ -164,5 +164,7 @@ services:
     build:
       context: ./repos/chat/
     restart: always
+    env_file:
+      - ./envs/chat
     volumes:
       - ./data/chat:/data
diff --git a/envs/chat b/envs/chat
new file mode 100644
index 0000000..42aca80
--- /dev/null
+++ b/envs/chat
@@ -0,0 +1,6 @@
+PORT=3100
+HOST=0.0.0.0
+DB_PATH=/data/chat.db
+DID_HOST=bsky.syu.is
+SERVICE_URL=https://bsky.syu.is
+CHAT_DOMAIN=bsky.chat